Being overweight and getting pregnant

Liliana • 1st Miscarriage 03.26.2015 2nd Miscarriage 08.05.2015 Praying for our rainbow baby!
I am overweight. I had two miscarriages last year but I have gained about 40-50 lbs since. It seems like I can't get pregnant now ever since the second miscarriage. 
Have any of my BBW ladies have had trouble getting pregnant due to being overweight?